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2. DKMA: Four steps to a great passenger experience (without rebuilding the terminal). https://www.dkma.com/en/images/downloads/processes/White%20paper%20-%204%20steps%20to%20a%20great%20passenger%20experience.pdf. Accessed 4 Apr 2020
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4. IATA: Airport Capacity and Level of Service. https://www.iata.org/contentassets/d1d4d535bf1c4ba695f43e9beff8294f/airport-capacity-and-level-of-service.pdf. Accessed 11 Mar 2020
5. IATA: Airport Development Reference Manual, 10th edn., pp. 183–196 (2014)